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alex41 [277]
3 years ago
13

Which of the following is the coordinate for the image of point m(3,-7) after a 90 degree clockwise rotation

Mathematics
1 answer:
BigorU [14]3 years ago
3 0

Answer:

(- 7, - 3 )

Step-by-step explanation:

Under a clockwise rotation about the origin of 90°

a point (x, y ) → (y, - x ), thus

(3, - 7 ) → (- 7, - 3 )

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3 years ago
Find the area of the shaded figure below. Use 3.14 for pi. NO LINKS OR IMPROPER ANSWERS
Lapatulllka [165]

Answer:

The area of the shaded region is about 58.9 square inches.

Step-by-step explanation:

To solve this question, let's recall some facts.

We know that the area of a circle can be defined as the following:

A = \pi r^2

where r is the radius of the circle.

We too know that circles have a diameter and a radius. The diameter of a circle is the distance a line that connects two points on a circle with its center, and the radius is half of the diameter.

We also know that figures can touch each other, or be in tangent with each other. For the sake of simplicity, we're going to assume that the shaded circles are in tangent with each other, or touch each other. Because they touch each other, these three circles can share 5 in. of the 15 in. rectangle. This means that the circles are 5 in. in diameter, or 2.5 in in radius.

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Because we have 3 circles, each with 2.5 in. radii, we can have the following expression which represents the total area of these circles:

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After approximation, I can conclude that the area of the shaded region is 58.9 square inches.

6 0
2 years ago
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